(* Copyright (C) 2020 - Hongbo Zhang, Authors of ReScript
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * In addition to the permissions granted to you by the LGPL, you may combine
 * or link a "work that uses the Library" with a publicly distributed version
 * of this file to produce a combined library or application, then distribute
 * that combined work under the terms of your choosing, with no requirement
 * to comply with the obligations normally placed on you by section 4 of the
 * LGPL version 3 (or the corresponding section of a later version of the LGPL
 * should you choose to use a later version).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *)

open Import

let wrap_single_field_record loc lbl_name (lambda : Lambda.lambda) =
  match String.length lbl_name with
  | 0 -> lambda
  | len -> (
      match String.unsafe_get lbl_name 0 with
      | 'I' ->
          let arity_s = String.sub lbl_name ~pos:1 ~len:(len - 1) in
          Lambda.Lprim
            ( Pccall
                (Primitive.make ~name:"#fn_mk" ~alloc:true ~native_name:arity_s
                   ~native_repr_args:[ Same_as_ocaml_repr ]
                   ~native_repr_res:Same_as_ocaml_repr),
              [ lambda ],
              Debuginfo.Scoped_location.(of_location ~scopes:empty_scopes loc)
            )
      | _ -> lambda)
